Dead city

In the pre-Conflux era, the dead city was an American city known as Las Vegas. After the Confluence humans still manige to live on and multiple survivor settlements were established in the Las Vegas area however around ten years after the confluence event another calamity occured. A horde of some unknown species of creachers appeared in the city and exterminated the remaining survivors. Whatever these creachers are they did not come to Las Vegas during the confluence event they were either already there or came in some other way.